The JCV DNA levels in the CSF specimens from PML patients. The CSF viral loads for patients with HIV infection, hematologic disorders, or other diseases are shown (left to right). The open circles indicate the copy number of JCV DNA in each sample, and the horizontal lines represent the medians. In several cases, JCV DNA measurement was performed for different specimens from the same patient during the follow-up period.
Nakamichi et al. BMC Neurology 2012 12:121 doi:10.1186/1471-2377-12-121